Lee, Tsung Dao (1926–)

Chinese-born American physicist who shared with Chen Ning Yang
the 1957 Nobel Prize in Physics for their investigations of examples of
the principle of parity being violated, which
led to significant improvements in our understanding of subatomic particles.
Lee and Yang showed that during weak interactions (see weak
force) of elementary particles, the law of conservation of parity (that
nature, in effect, makes no distinction between right- and lefthandedness)
does not always apply. This was subsequently verified by experiment.